AP Chemistry
5.3 Concentration Changes Over Time
5.1 Reaction Rates

\[ 2\text{H}_2\text{O}_2\text{(aq)} \rightarrow 2\text{H}_2\text{O(l)} + \text{O}_2\text{(g)} \]
The concentration of \(\text{H}_2\text{O}_2\text{(aq)}\) is monitored over time, producing the curve shown in the graph. The student identifies the following four reaction rate values:
\(r_0\): the instantaneous rate of decomposition at \(t = 0\text{ s}\)
\(r_1\): the instantaneous rate of decomposition at \(t = 100\text{ s}\)
\(r_2\): the instantaneous rate of decomposition at \(t = 200\text{ s}\)
\(r_{\text{avg}}\): the average rate of decomposition over the time interval from \(t = 0\text{ s}\) to \(t = 100\text{ s}\)
Which of the following correctly ranks these four rates from greatest to least?
Similar Questions
Tools for a 5
AP aligned mock tests to help you get a 5.
With grading, adaptive explanations, and more.
Find a Quiz
Find, solve, and grade every AP FRQ ever.
Find an FRQ
Stuck on AP Chemistry? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Book a SessionSee all our elite tutors
Learn AP Physics from scratch, quickly. This is the only course you'll need for the year.
A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee.
Explore the Course